Improvement in gas-regulators



G. MCMILLAN.

GAS-REGULATOR. N .171,Z36. Patented Dec. 21,1875.

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N, FEIERS, PHDTO-LITHOGRAFHER. WASHINGTON. D C.

UNITE STATES PATENT OFFICE GEORGE MOMILLAN, OF LA GROSSE, WISCONSIN.

IMPROVEMENT IN GAS-REGULATORS.

I Specification forming part of Letters Patent N 0. 171,236, dated December 21, 1875; application filed October 28, 1875.

To all whom it may concern:

Be it known that I, GEORGE MOMILLAN, of La Grosse, in the county of La Crosse, State of Wisconsin, have invented a new and Improved Adjustable Self-Regulating Gas-Burner, of which the following is a specification:

In the accompanying drawing, Figure 1 rep resents a vertical central section of my improved adjustable self-regulating gas-burner; and Figs. 2, 3, and 4, the same in detached portions, Fig. 2 beingthe tip portion, Fig. 3 the valve part, and Fig. 4 the base or lower portion.

Similar letters of reference indicate corresponding parts.

My invention relates to an improved adj ustable self-regulating gasburner, by which even pressure is maintained at the point of ignition, facility and ease of adjustment to any desired quantity of gas, perfect freedom from leakage by accident to the flexible diaphragm, or otherwise, and great saving in the quantity of gas for any given amount of light are combined with durability, simplicity, and cheapness of construction.

The invention consists of a gas-burner hav-' ing flexible diaphragm and valve depending therefrom, secured in position by turning the outer edge of the leather diaphragm over a metallic ringhaving an outside diameter equal to the inside diameter of the upper portion of valve-section, Fig. 3, less the thickness of the leather or other material used for diaphragm, and placing the same below the diaphragm,

within the upper portlou of valve part, Fig.

3, by which it is securely held in place. A flexible diaphragm, a, of leather or other flexible suitable material, is interposed between the upper and lower sections in valve-section, Fig. 3, as above described. It supports centrally the stem of .a valve, b, which opens according to the pressure of the gas on the diaphragm. The outside diameter of valve-section, Fig. 3, is made smaller than the inside diameter of base-section, Fig. 4, so that when screwed in position, as at Fig. 1, it leaves an 1 the tip portion; the quantity of gas being regulated by screwing down the valve-section, Fig. 3, so that the delivery perfbrations co 00, Fig. 3, will be covered to any desired extent, and the outflow of the gas lessened by the edge d of base-section, Fig. 4:, giving perfect control of the quantity of gas used, said delivery perforations c c c, Fig. 3, being four or more in number, and situated below the upper thread of the screw on valve-section, Fig. The flow of gas is thereby evenly kept up, gi ving a steady and uniform flame.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In self-regulating gasburners, arranged with flexible diaphragm and valve depending therefrom, the combination of metallic ring 0 with diaphragm a a and upper vertical wall of valve-section, for the purpose of holding the diaphragm and valve in place, as described, and for the purpose set forth. I 1

2. The gas-apertures c c c 0, arranged in combination with internal screw d, as shown, so that by screwing the valve-section, Fig. 3, up or down, the apertures c c c c are enlarged or diminished, as described, and for the purpose set forth.

3. The combination of valve-section with base-section by means of screw (1, as shown, so that a chamber for the transmission of gas is left betweenthe two sections, and the gas apertures c 000 may be enlarged or diminished, substantially as described.

H. LBLIss, J. A. WALKER. 

